In the annals of social science, few imperatives are more solemnly intoned than the necessity of measuring racism with the cold precision that only quantification can provide. Only when bias is reduced to p-values and effect sizes may one confidently proclaim, “Behold, the incontrovertible evidence of racism,” secure in the knowledge that no reasonable interlocutor can wriggle free on the strength of anecdote or wounded sentiment. Yet such measurements, to be credible, must also be unobtrusive; the observed must not suspect they are being observed, lest the Hawthorne effect of virtue signaling contaminate the data. Thus do neuroscientists, peering into the brains of the politely progressive, discover that mirror neurons flare sympathetically when a white face winces in pain, yet remain as quiescent as a Trappist monk when the sufferer is Black or Brown, registering, in fact, scarcely more activity than when the screen is blank.

A few months ago, in the hushed corridors of a distinguished academic medical center, my colleagues undertook precisely such unobtrusive inquiries, quietly gauging the implicit biases of physicians, nurses, and allied health professionals. The department chairman (a man of impeccable progressive credentials and, not incidentally, Mexican ancestry) displayed an almost erotic enthusiasm for the project. He envisioned the forthcoming publication as another feather in the institutional cap, preferably with his own name prominently displayed among the authors.

Then the numbers arrived.

Of all the demographic cohorts examined, Mexican physicians, nurses, and medical assistants manifested racism with an intensity and persistence unmatched by any other group. The effect was not subtle; it was, in the disagreeable parlance of our trade, highly significant. Overnight, the chairman’s ardor cooled to the temperature of liquid nitrogen. Scheduled meetings evaporated. The draft manuscript languished unread. At length, in a tone blending avuncular concern with veiled menace, he suggested that certain lines of inquiry are “better left in the file drawer,” that obscure purgatory where inconvenient truths go to die quietly, unmolested by peer review or public scrutiny.

One might have expected the opposite reaction: a renewed commitment to larger samples, refined instruments, and the patient disentangling of culture, class, and historical grievance that surely mediate such findings. After all, no serious person imagines racism to be the exclusive property of any one tribe; it is, rather, a universal human endowment, distributed with the impartiality of original sin. Yet the institution recoiled as though the data itself constituted an act of lèse-majesté against the chairman’s Mexican identity and, by extension, against the carefully cultivated narrative of the medical center as an ark of enlightened multiculturalism.

Here, then, was the deeper scandal, not the provisional pattern disclosed by our instruments, which any responsible scholar would greet with caution and calls for replication, but the swift administrative impulse to smother inquiry the moment it threatened institutional vanity or ideological comfort. Science, we are endlessly told, must “speak truth to power.” Apparently this injunction holds only when the truth in question flatters the powerful.

The episode illustrates a melancholy truth about contemporary academic medicine: Its much-advertised courage in confronting racism and bias is often little more than a theatrical performance, sustained only so long as the script concludes with the approved villains unmasked and the approved victims vindicated. When the data wander off the reservation (when the mirror reflects an unwelcome face) the production is quietly canceled, the actors dispersed, and the audience left none the wiser.

If we aspire to a health care system worthy of public trust, we shall have to cultivate a sturdier tolerance for unflattering evidence. Racism, like cholesterol, is not confined to one’s political enemies; it circulates through all bloodstreams. The question is whether our institutions possess the intellectual honesty to measure it wherever it appears, or whether they will continue retreating into the comforting dark of the file drawer whenever the numbers threaten someone’s self-regard.

Real progress, as ever, begins not with findings that affirm our prior moral certitudes, but with the rare and salutary humility to be instructed by those that do not.

The author is an anonymous physician.